Introduction of compulsory machine gun

Mortar pinyin Pm: Ij: Pà o is an arc artillery pinyin: paijipao, with short barrel, large firing angle and high ballistic arc. The recoil is borne by the seat plate and the projectile is fired by the tail. Mortar has been an effective suppression weapon to support and accompany infantry fighting since it came out, and it is an extremely important conventional weapon for infantry.